UNIX – List Files With Permissions In CHMOD Numbers

If you’re on UNIX you know ls will list files in a directory but typically you’ll get something like

$ ls
dns  index.html  info.php
$ ls -la
total 20
drwxr-xr-x. 3 webadmin www-data 4096 Jan 24 11:41 .
drwxr-xr-x. 4 webadmin www-data 4096 Jan 24 08:13 ..
drw-r--r--. 2 webadmin www-data 4096 Jan 24 09:31 dns
-rw-r--r--. 1 webadmin www-data 2199 Jan 24 08:14 index.html
-rw-r--r--. 1 webadmin www-data   19 Jan 24 10:25 info.php

You can simily stat the file(s) with the below

# On Mac
stat -f "%OLp" <file>

# On Ubuntu (or most Linux/Unix servers)
stat --format '%a' <file>

# On Busybox
stat -c '%a' <file>

What if we work with stat and make it easier?

# UNIX
sudo cp /etc/bashrc /etc/bashrc.original
echo "alias lsc='stat -c \"%a %A \$s %U:%G %y %n\" *'" | sudo tee -a /etc/bashrc
# MAC OS X
#alias lsc='stat -f "%A %t %Su:%Sg %t %Sm %t %N" *'
lsc

$ lsc
644 drw-r--r--  webadmin:www-data 2017-01-24 09:31:15.077301144 -0500 dns
644 -rw-r--r--  webadmin:www-data 2017-01-24 08:14:03.161307507 -0500 index.html
644 -rw-r--r--  webadmin:www-data 2017-01-24 10:25:42.844728348 -0500 info.php